lntest: make nobootstrap configurable

This will allow us to test bootstrapping in an itest.

lntest/node/config.go

@@ -146,8 +146,9 @@ type BaseNodeConfig struct {
 	ReadMacPath    string
 	InvoiceMacPath string
 
-	SkipUnlock bool
-	Password   []byte
+	SkipUnlock        bool
+	Password          []byte
+	WithPeerBootstrap bool
 
 	P2PPort     int
 	RPCPort     int
@@ -285,7 +286,6 @@ func (cfg *BaseNodeConfig) GenArgs() []string {
 	args = append(args, backendArgs...)
 
 	nodeArgs := []string{
-		"--nobootstrap",
 		"--debuglevel=debug",
 		"--bitcoin.defaultchanconfs=1",
 		"--accept-keysend",
@@ -326,6 +326,10 @@ func (cfg *BaseNodeConfig) GenArgs() []string {
 		args = append(args, "--noseedbackup")
 	}
 
+	if !cfg.WithPeerBootstrap {
+		args = append(args, "--nobootstrap")
+	}
+
 	switch cfg.DBBackend {
 	case BackendEtcd:
 		args = append(args, "--db.backend=etcd")